Thanks, you have been most helpful.
I will try later. So its a box component, not a box mesh, I see. Silly me.
Edit: I canât get your suggestion to work. I do eventually found a solution (but the solution means I canât get physics to work, its another thing for another day, as I am moving on).
Just to share, I went back & look at the blueprint content examples project ,under blueprint parent-child, the one with the heathbar as parent, & cupcake as child.
In the pickupblueprints, It used a Swapmesh function node inside contruction script. This allow the swapping of Static mesh at creation. I put this function in & input a staticMesh vaiable MeshToUse (to exchnage the original mesh), & it worked!
But because its a Static mesh, not static mesh compont, Physics is disable. Its not a big deal for my game, so I am satified with teh solution & movng on my next step in leanring UE4.
But thanks anyone, & Tom for the help & tutorial.